这对你有用吗
>>> my_dashes = ['_', '_', '_', '_']>>> print ''.join(my_dashes)____>>> print ' '.join(my_dashes)_ _ _ _
这对你有用吗
>>> my_dashes = ['_', '_', '_', '_']>>> print ''.join(my_dashes)____>>> print ' '.join(my_dashes)_ _ _ _
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